Slicing machine



Allg- 22, 1933- c. F. M. VAN BERKEL 1,923,852

SLICING MACHINE Filed June l0, 1929 Patented Aug. 22, 1933 UNITEDy STATES SLICING MACHINE Cornelis F. M. van Berkel, Wassenaar, Netherlands, assigner to U. S. Slicing Machine Company, La Porte, Ind., a Corporation of Indiana Application June 10, 1929, Serial No. 369,879, and in Great Britain June 27, 1928 12 Claims.

This invention relates to slicing machines and particularly to that class of machines in which a reciprocating table carries the substance to be sliced past a slicing knife and is provided with a cross slide which grips the substance and feeds it towards the knife so that successive slices may be cut therefrom by the knife.

One of the objects of this invention is to provide a guiding means for the cross slide and a means to prevent rotation of said cross slide about said guiding means.

Another object of this invention is to provide an anti-friction means which co-operates with a portion on the carriage to prevent tilting of the cross-slide.

In the drawing:-

Fig. 1 is an elevational view of a machineembodying my invention with parts thereof in section for the sake of clearness; and

Fig. 2 is a plan view partly in section of a portion of the apparatus shown in Fig. 1.

The device illustrated embodies a base member 1 having parallel guide rods 2 and 3 for supporting the reciprocating carriage 8 and guiding it in its reciprocation past the knife 14; The carriage 8 is provided with the lugs 4 and 5 at one end thereof through which the guide rod 2 extends, and the other end oi said carriage is provided with the lugs 6 and 7 through which the guide rod 3 extends. TheV carriage 8 is reciprocated by rotating the fly-wheel 9 by means of the handle 10 and this, in turn, rotates the crank 11 through shafts and gears (not shown) located in the base member 1.

movement to the carriage 3 on the guide rods 2 and 3 through the pitman connection 12 between the crank 11 and the carriage 8, the pitman being attached to the carriage as at 13. As the carriage 8 is reciprocated, it is carried past a slicing knife 14 so that the material, which is adapted to be supported on the kcarriage, can be sliced.- The carriage 8 has an upwardly extending portion 15 at one side thereof.

The carriage 8 is provided with a cylindrical guide 17 which is screw-threaded as at 18 into one end of the carriage 3, the other end of the cylindrical guide bearing in a cylindrical recess 19 at the opposite end of the carriage. The cylindrical guide 17 is open at the lower side thereof, as best illustrated in Fig. 1. A bearing block 16 has a longitudinal recess therein which is adapted to fit the outer surface of the Rotation of the crank 11 imparts a reciprocating (Cl. 14S-102) cylindrical guide 17 so as to be guided and supported thereon.

The cylindrical guide 17 has a feed screw 20A rotatably mounted therein, said feed screw having bearing portions at each end which bear in recesses at opposite ends of the cylindrical guide 17. One end of the feed screw is provided with a ratchetA 21 rigidly fastenedthereto and is adapted to :zo-operate with a pawl, not shown, to be rotated thereby in the usual manner. A nut 22 normally is in engagement with the threads of the feed screw so as to carryv the cross slide, presently to be described, toward the knife'as the feed screw is rotated. An upright 23 hasits lower end 24 screw-threaded in the bearing 16 and has a collar 25 integral `therewith which is adapted to clamp the supporting plate 26 of the cross slide between saidk collar and bearing member 16. The supporting plate 26 is provided with the projections 27 which cooperate with the projections 29 on the clamping member 28 to grip the substance between said clamping member and said plate. The clamping member 28 is provided with a bearing- 30 slidable on the upright 23 and has a member 31 within a recess therein which is adapted to be yieldingly held by a spring 32 against the upright 23 so as to grip the upright 23 and hold it in fixed position thereon. .A rod 33 slidable in the bearing 30 has a loose connection with the member 31 so as to release said member 31 from gripping engagement with the upright 23 so that the clampV 28 may be adjusted to any desired position along the upright. f

Slidable within the upright 23 is a slender rod 34 which is moved downwardly by means of a cam 35 pivotedv at 36 to the upright 23 and is normally urged upwardly by a spring Li0 engaging a fixed collar on the rod 34, the other end of the spring engaging a fixed portion of the bearing 15. The lower end of the rod 34 is rigidly connected to a member 38 as at 39, said member 38 having a loose connection with a screw 37 fastened to the nut 22. When it is desired to release the nut from the feed screw 20, the cam 35 is rotated clockwise to force the rod 3e, and, consequently, the nut 22, downward about its pivot 22. When the cam member 35 is rotated in a counter-clockwise direction, the spring 40 returns the nut 22 to its normal position.

With the construction just described, there is a tendency for the bearing member 16 and the parts supported thereon to rotate in a clockwise direction so that means must be provided to prevent this as it is desired to have the cross slide reciprocate only along the cylindrical guide 17. For this purpose, I have provided a laterally extending member 41 mounted on the bearing 16 and this member carries a roller 42 at its outer extremity. This roller 42 is adapted to engage the under side of the carriage 8, or, preferably, a wearing strip 43 rigidly fastened thereto, as best illustrated in Fig. 1. By providing such a means, it will be seen that rotation of the cross slide in a clockwise direction is effectively prevented and rotation in a counter-clockwise direction is, of course, prevented by the engagement of the plate 26 with the upper surface of the carriage 8.

The material to be sliced is placed partially upon the carriage 8 and partially 'upon the supporting plate 26 of the cross slide and the clamping members 28 is brought into engage-V the nut 22 so that manual means can be used to return the carriage to a position away from the knife 14.

Obviously those skilled in the art may make various changes in `the details and arrangement of parts without departing from the spirit and scope of the invention as defined by the claims hereto appended and I therefore do not wish to be restricted to the precise construction herein disclosed.

Having thus fully disclosed an embodiment of my invention,` what I claim and desire to secure by Letters Patent of the United States is:-

l. A slicing machine comprising a reciprocating table, a slicing knife, a cross slide having Ia bearing thereon adapted to embrace a guide rod and be guided thereby, a guide rod on which said bearing is slidably mounted, a laterally extending member on said bearing, a roller on `said laterally extending member, and a wear plate on said table against which the roller bears for guiding said roller along a fixed path whereby to prevent tilting of the table about said guide rod.

2. A slicing machine comprising a work supporting member and a second work supporting member upon which it is supported, a bearing on one of said members, a guide on the other of said members co-cperating with said bearing to guide the work supporting member in a direction longitudinally of said guide, and means on one of said members for preventing rotation of said bearing about said guide, said guide comprising a outwardly extending member carrying a roller engaging a guiding surface on the other of said members, which guiding surface guides said roller in a fixed rectilinear path as said members slide relatively to each other.

3. A slicing machine comprising a work support slidable on a bearing, an upright on said support, a clamp slidable on said upright, a rod extending downwardly through said upright, and a nut pivotally mounted on said support and normally in engagement with a feed screw on said slicing machine, said nut being connected y to said rod so that operation of said rod operates said nut.

4. A device as claimed in claim 3 which includes a cam member for operating said rod.

5. In a slicing machine, the combination with a work supporting table, of a bearing slidable on a guide rod mounted on said table, a cross slide, a post screw-threaded into said bearing and having a collar engaging said cross slide to hold said cross slide, bearing, and post in assembled relation, a nut pivoted to said bearing and engageable with a feed screw on said slicing machine, and a rod for operating said nut.

6. In a slicing machine, the combination with a work supporting table, of a bearing slidable on a guide rod mounted on said table, a cross slide, a post screw-threaded into said bearing and having a collar engaging said cross slide to hold said cross slide, bearing, and post in assembled relation, a nut pivoted to said bearing and engageable with a feed screw on said slicing machine, a rod for operating said nut, and a spring for normally holding said nut in engagement with the feed screw.

'7. In a slicing machine, the combination with a slicing knife, of a reciprocating table, a hollow guide member on said table, a feed screw therein, a bearing slidable on said guide member and carrying a nut adapted to Cso-operate with the feed screw, and a roller mounted on a laterally extending member on said bearing cooperating with the table to prevent rotation of said bearing about said guide.

8. A device as claimed in claim 7 in which 110 with a guiding surface on said table, said guiding surface guiding said roller along a fixed rectilinear path whereby to prevent movement of said bearing about said guide rod.

10. In a slicing machine, the combination with a Work supporting table, of a bearing slidable 1225 on a guide rod mounted on said table, a crossslide, a post extending through said cross-slide and screw-threaded into said bearing and having a collar engaging said cross-slide to hold said cross-slide, bearing, and post in assembled relation, a nut pivoted on said bearing, a feed screw adapted to be engaged by said nut, and operating means extending through said post for moving said nut into and out of engagement with said feed screw. 1 11. In a slicing machine, the combination with a slicing knife, of a substance support movable relatively to said knife, an abutment extending upwardly from said work support on vthe side thereof which lies farthest from said knife in a direction parallel to the cutting plane thereof when the support is in inoperative position, a guide member adjacent the opposite side of said work support, a feed plate guided by said guide and extending over said work support L toward said abutment and into close proximity therewith, and an arm of substantial length rigidly connected to said feed plate and engaging said work support on the under side thereof 1 whereby to guide said arm and consequently said guide rod, and a laterally extending arm carrying an anti-friction means thereon cooperating with a guiding surface on the table to cause said arm to move in a fixed path and prevent movement of said bearing about said rod.

CORNELIS F. M. VAN BERKEL. 

